[ Fix ]: App Crash when scroll to page 2 in Gallery Screen

app/src/main/java/com/google/samples/apps/sunflower/data/UnsplashRepository.kt

@@ -27,7 +27,7 @@ class UnsplashRepository @Inject constructor(private val service: UnsplashServic
 
     fun getSearchResultStream(query: String): Flow<PagingData<UnsplashPhoto>> {
         return Pager(
-            config = PagingConfig(enablePlaceholders = false, pageSize = NETWORK_PAGE_SIZE),
+            config = PagingConfig(enablePlaceholders = false, pageSize = NETWORK_PAGE_SIZE, initialLoadSize = NETWORK_PAGE_SIZE),
             pagingSourceFactory = { UnsplashPagingSource(service, query) }
         ).flow
     }